Snap-fastener.



C. E. RICHARDSON.

SNAP FASTENER.

APPLICATION FILED sEPT. 22. I916.

Patented Dec. 12, 1916.

tit)

CHA'UNCEY E. RICHARDSON, 0F CHEVY CHASE, MARYLAND.

SNAP-FASTENER.

Specification of Letters Patent. Paflgqgntqgdl Damn, .12, 11916,,

' Application filed September 22, 1916. Serial No. 121,602.

To all whom it-mag concern:

Be it. known that I, OHAUNcEY E. RIor-r- ARDSON, a citizen of the United States, residing at Chevy Chase, in the county of Montgomery and State of Maryland, have invented certain new and useful Improvements in Snap-Fasteners, of which the fol lowing is a specification.

This invention relates to improvements in snap fasteners, and it consists in construe.- tions, combinations, and arrangements herein described and claimed.

The object of my invention is to provide an improved snap fastener which will be doubly held in fastened or locked engagement, and which can beconveniently and easily fastened and unfa'stened under allpractical conditions.

A further object isto provide an improved snap fastener of more than the ordinary strength and durability by locking and interlocking the members thereof. A still furtherobject is to'provide an improved snap fastener that can be afiixed to garments, gloves, curtains or other fabrics in such manner as to become a' permanent fixture thereon, and not liable to cut the threads by which it is attached.

Another object is to provide an improved snap fastener adapted to be readily fastened and unfastened without strain or injury to the materials to which it is attached, and

with a minimum amount of physical effort.

Another object is to provide an improved snap fastener in which the interlocking parts are shielded by a protecting casing or hous- Another object is to provide an improved snap fastener that is capable of attachment to fabrics in such a manner as to lend a certain rigidity or stiffness to the same, thus increasing the value of and making more effective the snap fastener as a closing de-' vlce.

Another object is to provide an improved snap fastener whose members cannot oscillate u on each other but will remain rigidly fixed in place when locked.

A still further object is to provide an .improved snap fastener which will exert its holding and closing influence over a larger area than is usually efiected by snap fasteners. a 1 In the accompanying drawmgs Flgure 1 is a front face view of a primary socket I snap. member, illustrating one embodiment map were new option. 1

of my invention; Fig. 2 is a longitudinal I sectional view of the same; Fig. 3 is a front face view of the primary head snap member; Fig. 4: is a longitudinal sectional view of the primary head snap member; Fig. 5 is a longitudinal sectional view of the members shown in Figs. 2 and 3, showing them in the act of being unfastenedand released from looking engagement; Fig. 6 is a front face view of a modification, the head and socket members being in locking engagement f with each other; Fig. 7 represents a snap fastener with extended bases on either side of the locking members, and Fig. 8 shows asnap fastener with its snap members and bases oval shaped.

Referring to the drawings 1 indicates the slightly elongated base of a socket snap member provided with a turned or round edge 2, and apertures 8 for attachment, and having an upwardly projecting socket v3 projecting'portion 4- of said base constituting a fulcrum for engagement by the interlocking member in unlocking the fastener. The walls of the socket 3 contain slots 14 and are shaped to provide reentrant snap members which converge inwardly from the walls of the socket at 5 and terminate in out- .slightly spaced from one end thereof, the

wardly diverging portions 6, while 15 indicates an annular curved recess formed by a contraction of the lower part of the socket 3, for the reception of the corresponding curved contracted neck 16, at the lower-part of the casing or housing of the outer interlocking head member. The outer interlocking snap member is slightly larger than the socket snap member. It consists of a hollow dome-shaped member 12, having a central downwardly projecting head 10, with a contracted neck 10 and an extended base 7,

with apertures 8 for fastening the base to a fabric. One portion 9, of said base is adapted to overlap the fulcrum 4: of the other member and is extended beyond the opposite side of the hollow member 12, to form a similar fulcrum 13. The head 10 is adapted for lockingly engaging the reentrant snap members of said socket member.

In Fig. 6 is illustrated a modification wherein the socket member, and the inclosing dome-shaped member, instead of being circular are of oval form. In other respects the construction of the two cooperating members of the fastener are the same as in the form illustrated in Figs. 1 to 5, inclusive and the interlocking engagement of the parts is the same as in the latter construction. With the oval form of socket and inclosing dome-shaped member relative rotation of the two parts of the fastener on an axis passing vertically through the locking head 10, is prevented, and the fastener members are held in line one with the other. This is a desirable result where the fastener is used for securing together the parts of certain garments, where relative movement of the-edges of the garment is not desired.

- In the use of my invention the two halves of the device are, by their bases 1 and 7 attached to the fabric upon which they are to be used, the elongated portions of the bases. of each being arranged on opposite sides of the center thus formed, when in locked position. In operation, the head member is pressed against the socket member and the head 10 enters the inwardly converging portions 5 of the reentrant snap members which latter yield sufficiently to permit insertion of the head therethrough into locking engagement with the outwardly diverging portions 6 of said members, said 7 inwardly converging portions 5 acting to from its seat 15 and the withdrawal of the head 10 from the socket snap member 3 thus promptly and effectively separatlngthe two principal members from each other.

In showing the improved form of snap fastener with slightly elongated bases, I have not precluded the use of the ordinary round, or any other preferred shape of base or bases. Likewise in showing the oval con-- struction of the upwardly projecting socket member 3 and the downwardly projecting head member 12, in Fig. 6, I have not restricted myself. to that particular shape,

but these members may be square, oval,

diamond, or any desired shape that will prevent the members from turning upon each other laterally when in use. i

In Fig. 7 portions of the bases 1, 1, and 7, 7, of the two fastener members are extended, for a suitable distance, upon opposite sides of each member, and if desired could be made within the spirit of my in- 'a base having a curved pro ecting portion to act leverwise upon each other, re-' sulting in the disengagement of the neck 16 said bases may be crossed when the members are assembled, as shown.

In the modification shown in Fig. 8, both the interlocking portions of the fastener members, and their bases, are of oval form.

The device may of course be attached to garments, gloves, shoes, storm curtains, etc., by rivets, clips, strips or points made thereon or appliedthereto, or by any other means, within the scope of my invention, although for convenience I have illustrated needle holes as a means for attaching.

I have illustrated and described preferred and satisfactory constructions, but changes vention.

Having thus described my invention what I claim as new and desire to secure by Letters Patent of the United States is:

l. A snap fastener member comprising a base having a projecting socket portion provided with reentrant inwardly and outwardly curved snap members, in combination with a cooperating member comprising shaped to fit over said socket member and a depending head for locking engagement with said snap members, said socket and projecting portions having interlocking engagement at their bases.

2. A snap fastener member comprising a base with a raised socket thereon provided with a contracted neck and central rentrant inwardly and outwardly curved locking members, in combination with a second member comprising a ba e with a projecting portion thereon shape to fit over said socket and having a contracted portion near the base, and a depending head, to interlock with said contracted neck and locking inembers, respectively.

3. A sna fastener member comprising an elongated ase having a series of perforations near its edges and near one end having a projecting socket with central rentrant inwardly and outwardly curved locking tongues, in combination with a second mem- 'ber comprising an elongated base having a series of perforations near its edges and near one end a dome-shaped projection with a central depending head arranged to fit over said socket with said head in looking engagement with said tongues.

4. A snap fastener member comprising a base having a socket in combination with a 12 second member comprising a base having a hollow portion to fit over and have locking engagement with the socket, said socket and ho low portion being shaped to prevent re1ative rotation of the fastener members.

5. A snap fastener member comprising a base having a projecting socket thereon, in combination with a second member comprising a base having a cooperating projecting hollow portion to fit over said socket, said 130 socket and hollow portion being of oval form to prevent relative rotation of the fastener members,

6. A fastener member comprising a base having a-raised socket with reentrant looking portions, and an annular recess near said base, in combination With a second fastener member provided with a projectingsocket having reentrant snap members converging inwardly from the Walls of said'socket and terminating in outwardly diverging por tions, said socket member provided with an encircling recess around or near its-base, and a head member provlded with. a head adapted for insertion through said snap members into locking engagement with said;

outwardly diverging portions of the latter, and provided with an encircling indentation around or near its base adapted for engagement with the corresponding recess near the base of the socket member.

,1 8. A snap fastener comprising a socket member consisting of an elongated base hav-- ing a projecting socket spaced slightly from one end thereof whereby one end constitutes a fulcrum. and the other end of said elongated base provides convenient means for readily unfastening the snap fastener, and a head member consisting of base having one end adapted to overlapsaid fulcrum end of the socket member, and provided with a head for lockingly engaging said socket and with additional means for lockingly engaging the housing of said head member with the housing of the said socket member, and the other end of said elongated an elongated J base of the head member constituting convenient means for readily disengaging the snap fastener.

9. A snap fastener comprising a socket member having reentrant snap members, a head member provided with a head k I a adapted for insertion through said snap members into locking engagement therewith, both socket and head members being laterally oval and adapted to so engage eae ,other as to maintain their relation to each other without turning upon a center;

CHAUNCE}? E. RICHARDSON. 

